class_docstr: 重载 StreamHandler 使得替换 sys.stdout 的时候能够生效。
code: def __repr__(self):
      level = getLevelName(self.level)
      name = getattr(sys.stdout, "name", "")
      #  bpo-36015: name can be an int
      name = str(name)
      if name:
          name += " "
      return "<%s %s(%s)>" % (self.__class__.__name__, name, level)
  
file_path: fastNLP/fastNLP/core/log/handler.py
imports: import logging
  import sys
  from logging import getLevelName
label_desc: Use image node_id 5 for calling the StdoutStreamHandler obj's underlying member method code with example usage: obj.__repr__() and returns: unknown